<!DOCTYPE html>
<html lang="en">

    <head>
        <meta charset="UTF-8">
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <title>登录页面</title>
        <link rel="stylesheet" href="css/conmmon.css">
        <link rel="stylesheet" href="css/login.css">
        <script src="js/jquery.min.js"></script>
    </head>

    <body>
        <!-- 导航栏 -->
        <div class="nav">
            <img src="img/logo33.png" alt="">
            <span class="title">爱搜blog</span>
            <!-- 用来占据中间位置 -->
            <span class="spacer"></span>
            <a href="blog_list.html">主页</a>
            <a href="reg.html">注册</a>
        </div>
        <!-- 版心 -->
        <div class="login-container">
            <!-- 中间的登陆框 -->
            <div class="login-dialog">
                <h3>登陆</h3>
                <div class="row">
                    <span>用户名</span>
                    <input type="text" id="username">
                </div>
                <div class="row">
                    <span>密码</span>
                    <input type="password" id="password">
                </div>
                <div class="row">
                    <span>&nbsp;&nbsp;验证码</span>
                    &nbsp;&nbsp;
                    <input id="code_input" style="width: 80px;">
                    &nbsp;&nbsp;
                    <img onclick="refreshCode()" id="codeimg" style="height: 50px; width: 130px;">
                </div>
                <div class="row">
                    <button id="submit" onclick="mysub()">提交</button>
                </div>
            </div>
        </div>
        <script>
            //加载验证码
            function initCode() {
                jQuery.ajax({
                    url: "/user/getcode",
                    type: "POST",
                    data: {},
                    success: function (res) {
                        if (res.code == 200 && res.data.length > 0) {
                            jQuery("#codeimg").attr("src", res.data);
                            jQuery("#codeimg").show();
                        }
                    }
                });
            }
            initCode();
            function refreshCode() {
                initCode();
            }

            function mysub() {
                //1.非空效验
                var username = jQuery("#username");
                var password = jQuery("#password");
                var code_input = jQuery("#code_input");
                if (username.val().trim() == "") {
                    alert("请先输入用户名！");
                    username.focus();
                    return false;
                }
                if (password.val().trim() == "") {
                    alert("请先输入密码！");
                    password.focus();
                    return false;
                }
                if (code_input.val().trim() == "") {
                    alert("请输入验证码！");
                    code_input.focus();
                    return false;
                }

                //3.发送登录请求给后端
                jQuery.ajax({
                    url: "/user/login",
                    type: "POST",
                    data: {
                        "username": username.val(),
                        "password": password.val(),
                        "code_input": code_input.val()
                    },
                    success: function (res) {
                        if (res.code == 200 && res.data == 1) {
                            //登录成功
                            //alert("恭喜：登录成功！");
                            location.href = "myblog_list.html";
                        } else if (res.code == -3) {
                            alert("抱歉，验证码输入错误！");
                        } else {
                            alert("抱歉，登录失败！" + res.msg);
                        }
                    }
                });

            }
        </script>
    </body>

</html>